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    <title>Document</title>
</head>

<body>
    <div id="root"></div>
    <script src="./vue3基础源码/vue3.js"></script>
    <script>
        Vue.createApp({
            data() {
                return {
                    content: 'hello world',
                    show:true
                }
            },
            methods: {
                handleBtnClick() {
                    this.show = !this.show;
                }
            },
            template: `
                <div>
                    <span v-if="show">{{content}}</span>
                    <button v-on:click="handleBtnClick">显示/隐藏</button>
                </div>
            `
        }).mount("#root");
    </script>
</body>

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